Optimize & Repair PDF

Shrink file sizes, make scans searchable with OCR, flatten forms and recover damaged PDFs, all processed privately in your browser.

Optimise and repair tools make a PDF smaller, searchable, readable again or fixed in place, so it passes an upload limit, opens without errors or can no longer be changed. Everything runs in your browser, so contracts, statements and medical letters are never uploaded.

Compress PDF shrinks the photos and scans inside a file. Its default method scales down any image shown at more than 200, 150 or 96 DPI, your choice, and leaves text, links and form fields untouched. In one test, a one-page report with a large photo went from 3.56 MB to 209 KB at 150 DPI with its text still selectable. A lossless re-save is offered too, and Maximum compression turns every page into a picture at 150, 110 or 72 DPI for the smallest file. If the result is not smaller, you get the original back.

PDF OCR reads scanned pages in English, German, French, Spanish, Italian, Portuguese or Dutch and adds an invisible text layer, so the file looks the same but can be searched and copied, or it exports the text as a .txt file. Use 300 DPI for small print and 200 DPI for faster results on clear scans.

Repair PDF rebuilds the structure of a file that will not open, often after a download that stopped early or an app that crashed while saving. If that fails, it recovers each readable page as a 200 DPI image. Rasterise PDF turns every page into a flat image at 72, 150 or 300 DPI, which stops easy copying and fixes printing problems caused by fonts or transparency. Flatten PDF draws form answers, comments and stamps into the page while keeping text sharp, and some upload portals ask for exactly that.

Some options trade selectable text for a smaller or safer file, and each tool says so when it does.